${}_{}{}^{106}{}_{}{}^{}\mathrm{In}$ has been studied via the reaction ${}_{}{}^{106}{}_{}{}^{}\mathrm{Cd}(\mathrm{p},\mathrm{n}\gamma ){}_{}{}^{106}{}_{}{}^{}\mathrm{In}$ in the energy range $E_{\mathrm{p}}=7-9\mathrm{}$ MeV. Inbeam $\gamma$-ray excitation functions, $\gamma -\gamma$ coincidence measurements, and ${\beta }^{+}$-delayed $\gamma$-ray excitation functions have been used to identify thirteen levels in ${}_{}{}^{106}{}_{}{}^{}\mathrm{In}$. From this new level scheme the energy separation of the high-spin ground state and the low-spin isomer has been determined to be 28.6±0.5 keV. The threshold energy of the strongest low-lying $\gamma$-ray transition yields a mass excess for ${}_{}{}^{106}{}_{}{}^{}\mathrm{In}$ of -80601±15 keV. Spins for some states are suggested by comparing the excitation functions to Hauser-Feshbach calculations. In-beam $\gamma$-ray excitation functions for the ${}_{}{}^{108}{}_{}{}^{}\mathrm{Cd}(\mathrm{p},\mathrm{n}\gamma ){}_{}{}^{108}{}_{}{}^{}\mathrm{In}$ reaction give a mass excess for the $3^{+}$ ${\beta }^{+}$-decaying state in ${}_{}{}^{108}{}_{}{}^{}\mathrm{In}$ of -84018±12 keV. The systematics of odd-odd In nuclei are discussed in a $j-j$ coupling model.

• Received 19 December 1983

DOI:https://doi.org/10.1103/PhysRevC.29.2118